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By Design

Unknown (hidden) 2020.3.X, 2021.3.X, 2022.1.X, 2022.2.X

Votes

0

Found in

2020.3.38f1

2021.3.8f1

2022.1.14f1

2022.2.0a10

Issue ID

UUM-12223

Regression

No

Class Properties get overwritten when using IL2CPP

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Reproduction steps:
1. Open the attached project "AttributeTest.zip"
2. Make sure the Scripting Backend is IL2CPP
3. Build and Run the "boot" Scene
4. Open the Player.log (Console tab > context menu > open Player Log)
5. Search for "Added DerivedTest" and check the "[dbg] Prop: IntTest Attribute IntTest, accessor type: Replicate.AccessorInt32`1[METHOD_NAME]" under it

Expected result: The METHOD_NAME is "ReplicantTest"
Actual result: The METHOD_NAME is "DerivedTest"

Reproducible with: 2020.3.38f1, 2021.3.8f1, 2022.1.14f1, 2022.2.0a10
Not reproducible with: 2022.2.0a11, 2022.2.0b5, 2023.1.0a8

Reproducible on: macOS 12.4

  1. Resolution Note:

    Prior to 2022.2, unlike Mono, IL2CPP cached the attribute instances returned by GetCustomAttributes. This was only noticeable if a custom attribute class was mutable, which is the case here. This change relied on a larger refactor of custom attribute support and we don't plan on back porting it.

  2. Resolution Note (2022.2.X):

    Fixed in: 2022.2.0a11

  3. Resolution Note (2022.1.X):

    Closing automatically opened port

  4. Resolution Note (2020.3.X):

    Closing automatically opened port

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